CN116613702A - Automatic reclosing control system and method for circuit breaker - Google Patents

Abstract

The invention provides a circuit breaker automatic reclosing control system and a circuit breaker automatic reclosing control method, and relates to the technical field of power equipment. The circuit breaker automatic reclosing control system includes: the intelligent circuit breaker comprises a circuit breaker body and a comprehensive protection device, wherein the comprehensive protection device comprises a controller and a voltage intelligent detection unit; the controller is configured to: receiving a voltage monitoring result sent by the voltage intelligent detection unit, and acquiring a communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform; and controlling the breaker body to execute different opening and closing operation control strategies according to the voltage monitoring result and the communication connection state. The problems that the existing circuit breaker has some limitations on functions and cannot meet related requirements of the communication industry are solved.

Description

Automatic reclosing control system and method for circuit breaker

Technical Field

The invention relates to the technical field of power equipment, in particular to an automatic reclosing control system and an automatic reclosing control method for a circuit breaker.

Background

With the large-scale deployment of 5G networks, the power consumption and quality requirements of the communication room become higher and higher. The communication room is an important component of the 5G network, and providing a stable power supply is one of the key factors to ensure continuous operation of the network. In current telecommunication rooms, problems related to the power supply may occur, including grid transients, flashovers and outages. These problems may lead to tripping of the low voltage circuit breaker, which in turn leads to a situation in which the communication load is suddenly de-energized. After the fault occurs, the quick recovery after the power interruption can be realized through the reclosing function of the circuit breaker.

In the related art, the existing circuit breaker has some limitations in function, and cannot meet related requirements of the communication industry.

Disclosure of Invention

The embodiment of the application provides a circuit breaker automatic reclosing control system and a circuit breaker automatic reclosing control method, and aims to solve the problems that the existing circuit breaker has some limitations on functions and cannot meet related requirements of the communication industry.

In order to solve the technical problems, the application is realized as follows:

in a first aspect, an embodiment of the present application provides a circuit breaker automatic reclosing control system, where the circuit breaker automatic reclosing control system includes: the intelligent circuit breaker comprises a circuit breaker body and a comprehensive protection device, wherein the comprehensive protection device comprises a controller and a voltage intelligent detection unit;

The controller is configured to:

receiving a voltage monitoring result sent by the voltage intelligent detection unit, and acquiring a communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform;

and controlling the breaker body to execute different opening and closing operation control strategies according to the voltage monitoring result and the communication connection state.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects: firstly, according to a voltage monitoring result and a communication connection state, the controller can automatically trigger the opening and closing operation of the circuit breaker without manual intervention. Therefore, the manual conversion time can be greatly reduced, and the response speed and the reliability of the system are improved. The digital operation and maintenance monitoring platform can then remotely monitor and control the operating state of the circuit breaker. The manager can send an opening and closing operation signal through the digital operation and maintenance monitoring platform, and the controller can correspondingly control the breaker body to execute corresponding operation. Such remote control functionality improves the flexibility and convenience of the system. And finally, the voltage intelligent detection unit in the comprehensive protection device can monitor the voltage condition of the mains supply in real time and transmit the monitoring result to the controller. The controller can select a proper opening and closing operation control strategy according to a preset strategy according to the voltage monitoring result and the communication connection state. The intelligent protection function can effectively protect the circuit breaker and the electrical equipment in the machine room, and avoid faults and damages caused by abnormal voltage.

In some embodiments, the controller is further configured to:

sending a registration request to a digital operation and maintenance monitoring platform, wherein the registration request contains configuration information of the comprehensive protection device;

and receiving a registration result fed back by the digital operation and maintenance monitoring platform, and determining the communication connection state with the digital operation and maintenance monitoring platform according to the registration result.

In some embodiments, the controller is further configured to:

under the condition that the registration result contains a registration success identifier, determining that the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform is a success state;

and under the condition that the registration result contains the registration failure identification, determining the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform as a failure state.

In some embodiments, the controller is further configured to:

executing a local opening and closing operation control strategy under the condition that the communication connection state is a failure state;

and executing a remote opening and closing operation control strategy under the condition that the communication connection state is a successful state.

In some embodiments, the integrated protection device further comprises an intermediate relay unit and a time relay unit, and the voltage monitoring result comprises a mains voltage loss result and a mains recovery result;

The controller is further configured to:

under the condition that the communication connection state is a failure state and the voltage monitoring result is a mains voltage loss result, controlling the intermediate relay unit and the time relay unit to realize the switching-off operation;

and under the condition that the communication connection state is a failure state and the voltage monitoring result is a mains supply recovery result, controlling the intermediate relay unit and the time relay unit to realize closing operation.

In some embodiments, the controller is further configured to:

uploading a voltage monitoring result under the condition that the communication connection state is a successful state, and controlling the intermediate relay unit and the time relay unit to realize the switching operation in response to a switching operation signal issued by the digital operation and maintenance monitoring platform; and/or the number of the groups of groups,

and responding to a switching-on operation signal issued by the digital operation and maintenance monitoring platform, and controlling the intermediate relay unit and the time relay unit to realize switching-on operation.

In some embodiments, the digital operation and maintenance monitoring platform is configured to:

receiving a registration request sent by the comprehensive protection device, and generating a registration result according to configuration information contained in the registration request;

and sending the registration result to the comprehensive protection device.

In some embodiments, the digital operation and maintenance monitoring platform is further configured to:

Receiving a voltage monitoring result uploaded by the comprehensive protection device under the condition that the communication connection state is a successful state;

and generating a switching-off operation signal or a switching-on operation signal according to the voltage monitoring result, and sending the switching-off operation signal or the switching-on operation signal to the comprehensive protection device.

In some embodiments, the circuit breaker body further comprises a mode switch for switching an operating mode of the circuit breaker body, the operating mode comprising an automatic mode and a manual mode;

the controller is further configured to:

acquiring a working mode executed by a breaker body;

under the condition that the working mode is an automatic mode, according to a voltage monitoring result and a communication connection state, controlling the breaker body to execute a local opening and closing operation control strategy and a remote opening and closing operation control strategy;

and under the condition that the working mode is a manual mode, controlling the breaker body to execute a manual opening and closing operation control strategy.

In a second aspect, an embodiment of the present application provides a method for controlling automatic reclosing of a circuit breaker, which is applied to the automatic reclosing control system of a circuit breaker in the first aspect, and the method includes:

the comprehensive protection device controller receives the voltage monitoring result sent by the voltage intelligent detection unit and acquires the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform;

And the comprehensive protection device controller controls the breaker body to execute different opening and closing operation control strategies according to the voltage monitoring result and the communication connection state.

In some embodiments, the method further comprises:

sending a registration request to a digital operation and maintenance monitoring platform;

and receiving a registration result fed back by the digital operation and maintenance monitoring platform, and determining the communication connection state with the digital operation and maintenance monitoring platform according to the registration result.

In some embodiments, determining a communication connection status with the digital operation and maintenance monitoring platform according to the registration result includes:

under the condition that the registration result contains a registration success identifier, determining that the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform is a success state;

and under the condition that the registration result contains the registration failure identification, determining the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform as a failure state.

In some embodiments, according to the voltage monitoring result and the communication connection state, the circuit breaker body is controlled to execute different opening and closing operation control strategies, including:

executing a local opening and closing operation control strategy under the condition that the communication connection state is a failure state;

and executing a remote opening and closing operation control strategy under the condition that the communication connection state is a successful state.

In some embodiments, executing the local opening and closing operation control policy in a case that the communication connection state is a failure state includes:

under the condition that the communication connection state is a failure state and the voltage monitoring result is a mains voltage loss result, controlling the intermediate relay unit and the time relay unit to realize the switching-off operation;

and under the condition that the communication connection state is a failure state and the voltage monitoring result is a mains supply recovery result, controlling the intermediate relay unit and the time relay unit to realize closing operation.

In some embodiments, in a case where the communication connection state is a successful state, executing the remote opening and closing operation control policy includes:

uploading a voltage monitoring result under the condition that the communication connection state is a successful state, and controlling the intermediate relay unit and the time relay unit to realize the switching operation in response to a switching operation signal issued by the digital operation and maintenance monitoring platform; and/or the number of the groups of groups,

and responding to a switching-on operation signal issued by the digital operation and maintenance monitoring platform, and controlling the intermediate relay unit and the time relay unit to realize switching-on operation.

In some embodiments, the method further comprises:

receiving a registration request sent by the comprehensive protection device, and generating a registration result according to configuration information contained in the registration request;

And sending the registration result to the comprehensive protection device.

In some embodiments, the method further comprises:

receiving a voltage monitoring result uploaded by the comprehensive protection device under the condition that the communication connection state is a successful state;

and generating a switching-off operation signal or a switching-on operation signal according to the voltage monitoring result, and sending the switching-off operation signal or the switching-on operation signal to the comprehensive protection device.

In some embodiments, the method further comprises:

acquiring a working mode executed by a breaker body;

under the condition that the working mode is an automatic mode, according to a voltage monitoring result and a communication connection state, controlling the breaker body to execute a local opening and closing operation control strategy and a remote opening and closing operation control strategy;

and under the condition that the working mode is a manual mode, controlling the breaker body to execute a manual opening and closing operation control strategy.

In a third aspect, embodiments of the present application provide a computer-readable storage medium having instructions stored therein that, when run on any one of the above-described apparatuses, cause the apparatus to perform any one of the above-described circuit breaker automatic reclosing control methods.

In a fourth aspect, embodiments of the present application provide a chip, comprising: a processor and a memory; the memory is used for storing computer executing instructions, the processor is connected with the memory, and when the chip runs, the processor executes the computer executing instructions stored in the memory so that the chip executes any breaker automatic reclosing control method.

In a fifth aspect, embodiments of the present application provide a computer program product comprising instructions that, when run on any of the above-described apparatuses, cause an apparatus to perform any of the above-described circuit breaker automatic reclosing control methods.

The advantages of the second to fifth aspects may be referred to in any implementation manner of the first aspect, and are not described here. Further combinations of the present application may be made to provide further implementations based on the implementations provided in the above aspects.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a functional block diagram of an interrupt router automatic reclosing control system according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an embodiment of an interrupt router according to the present application;

FIG. 3 is a schematic side view of an embodiment of an interrupt circuit breaker body;

Fig. 4 is a schematic top view of an interrupt circuit breaker according to an embodiment of the application

Fig. 5 is a step flow of a method for controlling automatic reclosing of a circuit breaker according to an embodiment of the present application;

FIG. 6 is a flow chart illustrating steps of another method for controlling automatic reclosing of a circuit breaker according to an embodiment of the present application;

FIG. 7 is a flow chart illustrating steps of another method for controlling automatic reclosing of a circuit breaker according to an embodiment of the present application;

fig. 8 is a flowchart illustrating steps of another automatic reclosing control method for a circuit breaker according to an embodiment of the present application.

Reference numerals: 1. an intelligent circuit breaker; 2. a digital operation and maintenance monitoring platform; 10. a circuit breaker body; 20. a protective shell; 30. an electrical delay device; 40. a comprehensive protection device; 101. a panel; 102. a nameplate; 103. energy storage and release indicator lights; 104. a closing indicator lamp; 105. a brake-off indicator light; 106. a closing button; 107. a brake release button; 108. fault trip indication/reset button; 109. a mode changeover switch; 201. a lower housing; 202. an upper housing; 203. a groove; 204. a heat dissipation strip hole; 205. a placing frame; 206. a wire through hole; 401. a controller; 402. and the voltage intelligent detection unit.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. In addition, when describing a pipeline, the terms "connected" and "connected" as used herein have the meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

As described in the background art, the automatic reclosing function of a circuit breaker refers to a function that can automatically reclose a circuit after the circuit breaker fails or breaks. In the prior art, the implementation of such a function generally requires modification of the circuit breaker, i.e. some modification or addition of components to the circuit breaker itself, so that it can reclose automatically. The breaker body structure is modified, which may involve an increase in the failure points. Then, the existing circuit breaker only supports the single-path reclosing function without the voltage range monitoring function. This means that the circuit breaker can only perform a reclosing operation on a single circuit and has no function capable of monitoring a voltage range. This may result in a reclosing operation of the circuit breaker in an improper voltage range in some cases, which may cause circuit failure or safety problems.

In summary, the communication industry has a higher functional requirement for circuit breakers, and more complex, reliable, and more fully functional circuit breakers are needed to meet their specific requirements and safety standards. The existing common circuit breaker has relatively simple functions, and is not suitable for the development requirements of the communication industry.

In view of this problem, the inventors have proposed the technical idea of the present application: through setting up comprehensive protection device, carry out external on the basis that does not change the circuit breaker structure to realize the automatic reclosing function of circuit breaker through multiple mode, thereby reduce manual operation time, solve maintainer shortage and problem that fault handling time is long. In addition, the intelligent comprehensive device is further provided with a voltage monitoring unit for monitoring the voltage range of the commercial power, and an automatic reclosing function of the circuit breaker is realized by combining the electric delay device, so that the problem of non-monitoring of the voltage range is solved. Meanwhile, the device has the functions of acquisition, analysis and control, can be directly connected to a digital operation and maintenance monitoring system, and provides a serial communication interface for connecting to other systems, so that the complexity and delay of data processing are reduced.

The following describes the embodiments of the present application in detail with reference to the drawings.

First, an overall architecture of an automatic reclosing control system of a circuit breaker will be described, as shown in fig. 1, the system includes: the intelligent circuit breaker 1 and the digital operation and maintenance monitoring platform 2, the intelligent circuit breaker 1 comprises a circuit breaker body 10 and a comprehensive protection device 40, the comprehensive protection device 40 is arranged at the wire inlet end of the circuit breaker body 10, and the comprehensive protection device 40 comprises a controller 401 and a voltage intelligent detection unit 402.

Referring to fig. 2 to 4, the structure of the circuit breaker body will be described, first, as shown in fig. 2, the circuit breaker body 10 includes a panel 101, a nameplate 102 is installed above the middle of the front face of the panel 101, a clamping slot formed at the upper end of the panel 101 is connected with a secondary loop connection terminal in a clamping manner, meanwhile, an energy storage and release indicator lamp 103, a closing indicator lamp 104 and a brake release indicator lamp 105 are installed on one side of the front face of the panel 101 from left to right in sequence below the nameplate 102, a closing button 106 and a brake release button 107 are symmetrically installed below the energy storage and release indicator lamp 103, the closing indicator lamp 104 and the brake release indicator lamp 105, a fault tripping indication/reset button 108 is installed in the middle of the lower sides of the closing button 106 and the brake release button 107, a mode switch 109 is installed below the other side of the front face of the panel 101, and the circuit breaker body 10 can be used for automatic and manual switching state selection through the mode switch 109.

As shown in fig. 3, the outside of the breaker body 10 is provided with a protecting shell 20, so as to protect the breaker body 10, and the protecting shell 20 comprises a lower shell 201 and an upper shell 202, two sides of the upper end of the upper shell 202 are symmetrically provided with grooves 203, and the inside of the grooves 203 is connected with two sides of the upper end of the lower shell 201 through mounting screws, so as to facilitate the assembly of the protecting shell 20, and meanwhile, the inner side of the upper shell 202 is connected with the upper end of the shell of the breaker body 10 in a clamping way, a plurality of heat dissipation strip holes 204 are formed in one side of the lower shell 201, so as to facilitate the heat dissipation of the heat generated by the breaker body 10.

As shown in fig. 4, the lower casing 201 is provided with a placement frame 205 on the other side, meanwhile, the placement frame 205 is internally provided with an electrical delay device 30, the electrical delay device 30 is a trip delay module or delay relay, the electrical delay device 30 is electrically connected with the breaker body 10, the electrical delay device 30 can control the breaker to be opened after an adjustable and preset time, and can also prevent the breaker from being opened by mistake under the condition that the external mains supply is temporarily lowered or loses power in a very short time, and the breaker body 10 has the functions of overload protection, selective short-circuit protection, instantaneous short-circuit protection, ground fault protection, unbalanced phase protection, over-temperature self protection and the like by being matched with the undervoltage tripper and the auxiliary tripper, so that the use safety of the breaker body 10 is improved, the upper end of the placement frame 205 is provided with a plurality of wire through holes 206, and the positions of the wire through holes 206 are located right above the electrical delay device 30, so that wires are convenient to communicate.

In some embodiments, the controller 401 is configured to execute the following policies:

and receiving a voltage monitoring result sent by the voltage intelligent detection unit, and acquiring the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform.

The intelligent voltage detection unit inside the comprehensive protection device is responsible for monitoring the voltage of the mains supply in real time, and sends the monitored voltage value or related information to the controller. The controller receives the voltage monitoring results and serves as an important basis for the subsequent opening and closing operation, and the controller can acquire the communication connection state between the comprehensive protection device and the digital operation and maintenance monitoring platform. The state detection is used for ensuring that the system can timely transmit state information of the circuit breaker and receive control instructions from the monitoring platform, and the controller formulates a corresponding opening and closing operation control strategy according to the received voltage monitoring result and the communication connection state. Specifically, according to the voltage monitoring result, the controller can judge whether the mains voltage is in a safe range or not, and whether an abnormal situation exists or not so that the disconnection operation is needed. And the acquisition of the communication connection state is to determine whether the current breaker state can be sent to the digital operation and maintenance monitoring platform or whether the control instruction from the monitoring platform can be received.

And controlling the breaker body to execute different opening and closing operation control strategies according to the voltage monitoring result and the communication connection state.

The controller receives the voltage monitoring result transmitted by the voltage intelligent detection unit. Meanwhile, the controller can also check the communication connection state between the comprehensive protection device and the digital operation and maintenance monitoring platform. Based on the two pieces of key information, the controller can determine the current working state and execute the optimal opening and closing operation control strategy matched with the working state. The comprehensive protection device controller can control the breaker body to execute proper opening and closing operations according to different conditions and requirements according to the comprehensive analysis of the voltage monitoring result and the communication connection state so as to ensure the safe operation of the power system and the normal power supply of equipment.

Through the control system, the opening and closing operation of the circuit breaker can be automatically executed without manual intervention. Thus, the workload of maintenance personnel can be greatly reduced, and the risk of human operation errors is reduced.

In some embodiments, the controller is further configured to:

and sending a registration request to the digital operation and maintenance monitoring platform.

The comprehensive protection device comprises a communication module, can selectively use 4G communication or RJ45 wired network port communication to realize a northbound communication function, and can interact with the digital operation and maintenance monitoring platform through an intranet based on the communication module. The digital operation and maintenance monitoring platform is a central platform for managing and monitoring communication systems, can receive and process data from the comprehensive protection device, and provides functions of remote monitoring, fault diagnosis, equipment management and the like. In this case, the integrated protection device is required to register itself with the digital operation and maintenance monitoring platform as part of the communication system so that the platform can identify, manage and monitor the device.

The comprehensive protection device registers with the digital operation and maintenance monitoring platform by sending a registration request. The registration request contains configuration information for the integrated protection device, which may include a unique identifier for the device, a device model number, a software version, an IP address, a communication protocol, etc. By sending a registration request and providing configuration information, the comprehensive protection device can establish an effective association relationship with the digital operation and maintenance monitoring platform. The digital operation and maintenance monitoring platform records the information of the comprehensive protection device in the system according to the received registration request, and allocates corresponding management and monitoring resources for the equipment. After registration is completed, the digital operation and maintenance monitoring platform can acquire data and state information of the equipment in real time through communication connection with the comprehensive protection device, and monitor, configure and manage the equipment. Therefore, the registration and association of the equipment can be realized by sending a registration request to the digital operation and maintenance monitoring platform and including the configuration information of the comprehensive protection device in the request, so that the digital operation and maintenance monitoring platform can effectively monitor and manage the comprehensive protection device.

And receiving a registration result fed back by the digital operation and maintenance monitoring platform, and determining the communication connection state with the digital operation and maintenance monitoring platform according to the registration result.

The comprehensive protection device can receive the registration result fed back by the digital operation and maintenance monitoring platform through the communication module. After receiving the registration result, the comprehensive protection device analyzes and processes the result. By analyzing the registration result, the communication system can determine the communication connection state with the digital operation and maintenance monitoring platform. According to the information of the registration result, the system can judge whether the communication connection is successfully established with the digital operation and maintenance monitoring platform. If the registration results confirm that the registration is successful and indicate that the connection is normal, the system may determine that a communication connection with the digital operation and maintenance monitoring platform is available. Conversely, if the registration result shows a registration failure or abnormal connection status, the system may determine that there is a problem with the communication connection with the digital operation and maintenance monitoring platform.

By receiving and analyzing the registration result of the digital operation and maintenance monitoring platform, the communication system can know the state of the communication connection in real time and perform subsequent communication operation according to the state. The function can help the system to timely detect and process the communication connection problem, and ensure normal communication with the digital operation and maintenance monitoring platform, thereby realizing smooth operation of data transmission, monitoring, control and the like.

And under the condition that the registration result contains a registration success identifier, determining the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform as a success state.

And under the condition that the registration result contains the registration failure identification, determining the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform as a failure state.

When the registration result is that the registration is successful, that is, the monitoring platform successfully receives and confirms the registration request of the comprehensive protection device, the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform can be determined to be a successful state. This means that the integrated protection device has successfully established a reliable communication link with the monitoring platform, allowing data transmission and command interaction. Therefore, when the registration result is that the registration is successful, the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform can be determined to be a successful state, so that the normal communication of the system and the smooth operation of the monitoring function are ensured. In this case, the communication connection between the integrated protection device and the digital operation and maintenance monitoring platform cannot be successfully established or maintained. This may be due to network failure, configuration errors, communication protocol mismatch, or registration failure due to other reasons.

When the registration result is that the registration fails, the comprehensive protection device cannot successfully communicate with the digital operation and maintenance monitoring platform. Therefore, the communication connection state can be determined to be a failure state, namely, the communication link between the comprehensive protection device and the digital operation and maintenance monitoring platform cannot work normally. The integrated protection device may attempt to re-register or take other actions to restore the communication connection and update the communication connection state after the communication connection is restored.

In some embodiments, the controller is further configured to:

acquiring a working mode executed by a breaker body;

under the condition that the working mode is an automatic mode, according to a voltage monitoring result and a communication connection state, controlling the breaker body to execute a local opening and closing operation control strategy and a remote opening and closing operation control strategy;

and under the condition that the working mode is a manual mode, controlling the breaker body to execute a manual opening and closing operation control strategy.

The breaker body includes a mode switch for switching the operation mode of the breaker body. The two modes of operation are an automatic mode and a manual mode, respectively.

In the automatic mode, the controller controls the breaker body to execute a strategy of opening and closing operation according to the voltage monitoring result and the communication connection state. Specifically, the controller may select an appropriate operation policy according to the uploaded voltage monitoring result and the judgment of the communication connection state, where the operation policy includes a local opening and closing operation control policy and a remote opening and closing operation control policy. The controller can intelligently decide whether to execute local or remote operation according to the voltage condition and the communication connection state monitored in real time, and correspondingly send out a corresponding command.

In the manual mode, the controller controls the breaker body to execute a manual opening and closing operation control strategy. This means that the operator can manually select to perform the opening and closing operation by manually operating the breaker body, independent of the voltage monitoring result and the communication connection state in the automatic mode. The presence of such manual mode may provide a more flexible manner of operation, tailored to certain special situations or specific needs.

The system realizes the switching of the working mode of the breaker body and the control of the corresponding operation strategy through the configuration of the mode change-over switch and the controller. In an automatic mode, selecting a proper opening and closing operation strategy according to a voltage monitoring result and a communication connection state; in the manual mode, opening and closing operations are performed according to manual operations of an operator. The design makes the system more flexible and can adapt to different operation requirements and scenes.

In some embodiments, the controller is further configured to:

and executing a local opening and closing operation control strategy under the condition that the communication connection state is a failure state.

When the comprehensive protection device cannot communicate with the digital operation and maintenance monitoring platform, the system adopts a local opening and closing operation control strategy. In general, communication between the digital operation and maintenance monitoring platform and the comprehensive protection device can provide functions of real-time monitoring, remote control, fault diagnosis and the like. However, if the communication connection status is failed, it indicates that these functions are not available, and cannot be controlled and monitored by remote instructions. In order to ensure safe operation of equipment and a power system, even if the communication connection fails, the comprehensive protection device still needs to have a certain autonomous control capability, that is, the comprehensive protection device also has an autonomous judging and operating capability. Executing the local opening and closing operation control strategy allows the system to still take necessary operations to ensure safe operation of the equipment and the power system in the event of a communication failure. Such a strategy may provide a degree of independence and robustness and reduce reliance on remote communications.

And executing a remote opening and closing operation control strategy under the condition that the communication connection state is a successful state.

When the comprehensive protection device is communicated with the digital operation and maintenance monitoring platform, the digital operation and maintenance monitoring platform can monitor, control and manage the comprehensive protection device in real time by successfully establishing communication connection. The remote opening and closing operation control strategy allows an operation and maintenance personnel or a control center to remotely send a command through the digital operation and maintenance monitoring platform to control the opening and closing operation of the comprehensive protection device.

And executing a remote opening and closing operation control strategy realizes the remote control and operation of operation and maintenance personnel on the power system through the remote instruction transmission of the digital operation and maintenance monitoring platform and the response of the comprehensive protection device. The mode has flexibility, convenience and timeliness, can rapidly respond to the changed running state and fault condition, and realizes remote management and maintenance of the power system.

In some embodiments, the controller is further configured to:

under the condition that the communication connection state is a failure state and the voltage monitoring result is a mains voltage loss result, controlling the intermediate relay unit and the time relay unit to realize the switching-off operation;

and under the condition that the communication connection state is a failure state and the voltage monitoring result is a mains supply recovery result, controlling the intermediate relay unit and the time relay unit to realize closing operation.

The comprehensive protection device also comprises an intermediate relay unit and a time relay unit, and the voltage monitoring result comprises a mains supply voltage loss result and a mains supply recovery result. When the communication connection fails, a real-time instruction cannot be received from the digital operation and maintenance monitoring platform, and the comprehensive protection device still needs to monitor the state of the mains supply and take corresponding operation. If the voltage monitoring result shows that the mains supply is out of voltage, namely the mains supply is interrupted, the comprehensive protection device needs to judge autonomously and take measures to ensure the safety of equipment and systems. In this case, the controller may issue a command to control the circuit breaker to perform the opening operation through the intermediate relay unit. The intermediate relay unit acts as an intermediate link for signal transmission, and transmits a control signal to the circuit breaker to open the circuit and cut off the circuit, so as to protect equipment from potential hazards during the voltage loss of the mains supply.

Likewise, in the case where the communication connection state is a failure state and the voltage monitoring result is a commercial power restoration result, the system will realize a closing operation by controlling the intermediate relay unit and the time relay unit.

When the communication connection fails, the comprehensive protection device still needs to monitor the state of the mains supply and take corresponding operation. If the voltage monitoring result shows that the mains supply is recovered, namely the power supply of the mains supply is recovered to be normal, the comprehensive protection device needs to independently judge and take measures to realize the closing operation of the circuit, so that the power is supplied again. In this case, the controller may issue a command to control the circuit breaker to perform a closing operation through the intermediate relay unit and the time relay unit. The intermediate relay unit is used as an intermediate link of signal transmission, and transmits a control signal to the circuit breaker to close the circuit breaker, so that the circuit is restored to supply power.

In some embodiments, the controller is further configured to:

uploading a voltage monitoring result under the condition that the communication connection state is a successful state, and controlling the intermediate relay unit and the time relay unit to realize the switching operation in response to a switching operation signal issued by the digital operation and maintenance monitoring platform; and/or the number of the groups of groups,

and responding to a switching-on operation signal issued by the digital operation and maintenance monitoring platform, and controlling the intermediate relay unit and the time relay unit to realize switching-on operation.

And when the communication connection state is successful, the comprehensive protection device uploads the voltage monitoring result to the digital operation and maintenance monitoring platform. Meanwhile, when the digital operation and maintenance monitoring platform issues a brake-separating operation signal, the comprehensive protection device can receive and analyze the signal. Based on the uploaded voltage monitoring result and the instruction issued by the digital operation and maintenance monitoring platform, the controller of the comprehensive protection device can judge whether the opening operation needs to be executed or not. If the digital operation and maintenance monitoring platform requires to execute the opening operation and the voltage monitoring result accords with the condition of executing the opening operation, the controller sends out a corresponding command. These commands will be transmitted to the intermediate relay unit and the time relay unit to control the action of the circuit breaker.

After receiving the control signal, the intermediate relay unit opens the circuit breaker to break the circuit, cuts off the circuit connection and realizes the opening operation. The time relay unit can assist in controlling the action time of the circuit breaker, and ensures that the switching-off operation is performed after proper time delay so as to meet the requirements of a system.

And under the condition that the communication connection state is successful, the comprehensive protection device uploads the voltage monitoring result to the digital operation and maintenance monitoring platform. These voltage monitoring results include the voltage conditions of the mains supply for real-time monitoring of the mains supply status. When the digital operation and maintenance monitoring platform issues a closing operation signal, the comprehensive protection device can receive and analyze the signal.

Based on the uploaded voltage monitoring result and the instruction issued by the digital operation and maintenance monitoring platform, the controller of the comprehensive protection device can judge whether the closing operation needs to be executed or not. If the digital operation and maintenance monitoring platform requires to execute the switching-on operation and the voltage monitoring result accords with the condition of executing the switching-on operation, the controller sends out a corresponding command. These commands will be transmitted to the intermediate relay unit and the time relay unit to control the action of the circuit breaker.

After receiving the control signal, the intermediate relay unit closes the circuit breaker to open the circuit, and resumes circuit connection to realize closing operation. The time relay unit can assist in controlling the action time of the circuit breaker, and the switching-on operation is performed after proper time delay so as to meet the requirements of a system.

The comprehensive protection device realizes interaction and remote control with the digital operation and maintenance monitoring platform by uploading the voltage monitoring result and responding to the opening operation signal or the closing operation signal issued by the digital operation and maintenance monitoring platform. The mechanism enables operation and maintenance personnel to monitor the voltage state through the digital operation and maintenance monitoring platform, issue operation instructions and control the opening and closing operation of the circuit breaker in real time.

The uploading voltage monitoring result has the advantages that the digital operation and maintenance monitoring platform can timely acquire the voltage condition of the mains supply, so that the real-time monitoring and analysis of the power system are realized. This helps to find the condition of the mains voltage loss or recovery in time, thereby making corresponding measures. Meanwhile, the digital operation and maintenance monitoring platform can judge whether opening or closing operation is needed according to the voltage monitoring result, and issue corresponding instructions.

The comprehensive protection device responds differently according to the communication connection state and the voltage monitoring result. When the communication connection state is successful and the voltage monitoring result meets the condition, the comprehensive protection device executes a switching-off or switching-on operation signal issued by the digital operation and maintenance monitoring platform. By controlling the intermediate relay unit and the time relay unit, accurate opening and closing operation can be realized, and accurate action of the circuit breaker and switching of the circuit are ensured.

In some embodiments, the digital operation and maintenance monitoring platform is configured to:

receiving a registration request sent by the comprehensive protection device, and generating a registration result according to configuration information contained in the registration request;

and sending the registration result to the comprehensive protection device.

First, the digital operation and maintenance monitoring platform is configured to receive a registration request from the integrated protection device. When the integrated protection device is started, the integrated protection device can send a registration request to the digital operation and maintenance monitoring platform so as to establish communication connection with the monitoring platform.

In the registration request, the comprehensive protection device carries some configuration information, which is very important for the digital operation and maintenance monitoring platform, and can be used for identifying and managing different comprehensive protection devices, and meanwhile, necessary basis is provided for subsequent operations.

After receiving the registration request, the digital operation and maintenance monitoring platform processes the request and generates a corresponding registration result. The registration result is typically a status message indicating the handling of the registration request. It may include different states such as registration success or registration failure. When the registration result is generated, the digital operation and maintenance monitoring platform can verify and analyze according to the configuration information contained in the registration request. It will check the uniqueness of the device identification, verify the correctness of the communication parameters, and perform other necessary configuration checks according to the system requirements. Based on the results of these checks and analyses, the digital operation and maintenance monitoring platform will determine the final registration results.

After the registration result is generated, the digital operation and maintenance monitoring platform sends the result back to the comprehensive protection device. The feedback mechanism can enable the comprehensive protection device to know the processing result of the registration request so as to perform corresponding operation according to the registration result. For example, if the registration result is that the registration is successful, the integrated protection device may continue to communicate and interact with the digital operation and maintenance monitoring platform. If the registration result is a registration failure, the comprehensive protection device may need to take corresponding corrective action or communicate with the administrator.

The digital operation and maintenance monitoring platform plays a vital role in the processing of registration requests. The method not only receives and processes the registration request, but also generates a registration result according to the configuration information and feeds the result back to the comprehensive protection device, thereby ensuring the normal operation and effective management of the whole system.

In some embodiments, the digital operation and maintenance monitoring platform is further configured to:

receiving a voltage monitoring result uploaded by the comprehensive protection device under the condition that the communication connection state is a successful state;

and generating a switching-off operation signal or a switching-on operation signal according to the voltage monitoring result, and sending the switching-off operation signal or the switching-on operation signal to the comprehensive protection device.

And the digital operation and maintenance monitoring platform receives the voltage monitoring result uploaded by the comprehensive protection device under the condition that the communication connection state with the comprehensive protection device is successful. The comprehensive protection device monitors the voltage condition of the mains supply through the voltage intelligent detection unit, and comprises a mains supply voltage loss result and a mains supply recovery result. Once these results are detected, the integrated protection device will upload them to the digital operation and maintenance monitoring platform to provide real-time utility status information. Therefore, the digital operation and maintenance monitoring platform can acquire accurate data from the comprehensive protection device, and provides basis for subsequent operation decision.

Based on the received voltage monitoring result, the digital operation and maintenance monitoring platform can analyze and judge the current state of the commercial power so as to determine whether opening or closing operation is needed. If the digital operation and maintenance monitoring platform judges that the opening operation is needed, the digital operation and maintenance monitoring platform generates a corresponding opening operation signal and sends the signal to the comprehensive protection device. Similarly, if the digital operation and maintenance monitoring platform judges that the switching-on operation is required, the digital operation and maintenance monitoring platform generates a switching-on operation signal and sends the signal to the comprehensive protection device.

The digital operation and maintenance monitoring platform can effectively communicate and cooperate with the comprehensive protection device. The platform generates corresponding operation signals according to the voltage monitoring result, so that the comprehensive protection device can realize accurate opening or closing operation according to the instructions of the platform. The mechanism provides higher flexibility and remote control capability, so that operation and maintenance personnel of the power system can monitor and control the state of the circuit breaker in real time, and the reliability and safety of the system are further improved.

In a second aspect of the present application, an embodiment of the present application provides a method for controlling automatic reclosing of a circuit breaker, which is applied to the automatic reclosing control system of a circuit breaker in the first aspect of the embodiment, as shown in fig. 5, and the method includes the following steps:

s101: the comprehensive protection device controller receives the voltage monitoring result sent by the voltage intelligent detection unit and acquires the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform;

s102: and the comprehensive protection device controller controls the breaker body to execute different opening and closing operation control strategies according to the voltage monitoring result and the communication connection state.

In some embodiments, the method further comprises:

sending a registration request to a digital operation and maintenance monitoring platform;

and receiving a registration result fed back by the digital operation and maintenance monitoring platform, and determining the communication connection state with the digital operation and maintenance monitoring platform according to the registration result.

In some embodiments, as shown in fig. 6, determining a communication connection state with the digital operation and maintenance monitoring platform according to the registration result includes the following steps:

s1011: under the condition that the registration result contains a registration success identifier, determining that the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform is a success state;

S1012: and under the condition that the registration result contains the registration failure identification, determining the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform as a failure state.

In some embodiments, as shown in fig. 7, according to the voltage monitoring result and the communication connection state, the circuit breaker body is controlled to execute different opening and closing operation control strategies, including the following steps:

s1021: executing a local opening and closing operation control strategy under the condition that the communication connection state is a failure state;

s1022: and executing a remote opening and closing operation control strategy under the condition that the communication connection state is a successful state.

In some embodiments, executing the local opening and closing operation control policy in a case that the communication connection state is a failure state includes:

s10211: under the condition that the communication connection state is a failure state and the voltage monitoring result is a mains voltage loss result, controlling the intermediate relay unit and the time relay unit to realize the switching-off operation;

s10212: and under the condition that the communication connection state is a failure state and the voltage monitoring result is a mains supply recovery result, controlling the intermediate relay unit and the time relay unit to realize closing operation.

In some embodiments, in a case where the communication connection state is a successful state, executing the remote opening and closing operation control policy includes:

S10221: uploading a voltage monitoring result under the condition that the communication connection state is a successful state, and controlling the intermediate relay unit and the time relay unit to realize the switching operation in response to a switching operation signal issued by the digital operation and maintenance monitoring platform; and/or the number of the groups of groups,

s10222: and responding to a switching-on operation signal issued by the digital operation and maintenance monitoring platform, and controlling the intermediate relay unit and the time relay unit to realize switching-on operation.

In some embodiments, as shown in fig. 8, the method further comprises:

s201: receiving a registration request sent by the comprehensive protection device, and generating a registration result according to configuration information contained in the registration request;

s202: and sending the registration result to the comprehensive protection device.

In some embodiments, the method further comprises:

s203: receiving a voltage monitoring result uploaded by the comprehensive protection device under the condition that the communication connection state is a successful state;

s204: and generating a switching-off operation signal or a switching-on operation signal according to the voltage monitoring result, and sending the switching-off operation signal or the switching-on operation signal to the comprehensive protection device.

In some embodiments, the method further comprises:

acquiring a working mode executed by a breaker body;

under the condition that the working mode is an automatic mode, according to a voltage monitoring result and a communication connection state, controlling the breaker body to execute a local opening and closing operation control strategy and a remote opening and closing operation control strategy;

And under the condition that the working mode is a manual mode, controlling the breaker body to execute a manual opening and closing operation control strategy.

According to the invention, the controller can automatically trigger the opening and closing operation of the circuit breaker according to the voltage monitoring result and the communication connection state, and manual intervention is not needed. Therefore, the manual conversion time can be greatly reduced, and the response speed and the reliability of the system are improved. The digital operation and maintenance monitoring platform can remotely monitor and control the running state of the circuit breaker. The manager can send an opening and closing operation signal through the digital operation and maintenance monitoring platform, and the controller can correspondingly control the breaker body to execute corresponding operation. Such remote control functionality improves the flexibility and convenience of the system. The intelligent voltage detection unit in the comprehensive protection device can monitor the voltage condition of the mains supply in real time and transmit the monitoring result to the controller. The controller can select a proper opening and closing operation control strategy according to a preset strategy according to the voltage monitoring result and the communication connection state. The intelligent protection function can effectively protect the circuit breaker and the electrical equipment in the machine room, and avoid faults and damages caused by abnormal voltage.

The processor may be a Central Processing Unit (CPU), a general purpose processor Network Processor (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The processor may also be any other means for performing a processing function, such as a circuit, device, or software module. The processor may also include multiple CPUs, and the processor may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores for processing data (e.g., computer program instructions).

The memory may be a read-only-memory (ROM) or other type of static storage device, random Access Memory (RAM) or other type of dynamic storage device that may store static information and instructions, or an electrically erasable programmable read-only-memory (EEPROM), compact disc-only-memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, to which embodiments of the application are not limited. The memory may be separate or integrated with the processor. Wherein the memory may contain computer program code. The processor is used for executing computer program codes stored in the memory, so that the automatic reclosing control method of the circuit breaker is realized.

The communication interface may be used to communicate with other devices or communication networks (e.g., ethernet, radio Access Network (RAN), wireless Local Area Network (WLAN), etc.). The communication interface may be a module, a circuit, a transceiver, or any device capable of enabling communication.

The bus may be an Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The buses may be divided into address buses, data buses, control buses, etc.

The embodiment of the invention also provides a computer readable storage medium, which comprises computer execution instructions, and when the computer execution instructions run on a computer, the computer is caused to execute the automatic reclosing control method of the circuit breaker.

The embodiment of the invention also provides a chip, which comprises: a processor and a memory; the memory is used for storing computer execution instructions, the processor is connected with the memory, and when the chip runs, the processor executes the computer execution instructions stored in the memory, so that the chip executes the automatic reclosing control method of the circuit breaker provided by the embodiment.

The embodiment of the invention also provides a computer program product which can be directly loaded into a memory and contains software codes, and the computer program product can realize the automatic reclosing control method of the circuit breaker provided by the embodiment after being loaded and executed by a computer.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (10)

1. A circuit breaker recloser control system, the system comprising: the intelligent circuit breaker comprises a circuit breaker body and a comprehensive protection device, wherein the comprehensive protection device comprises a controller and a voltage intelligent detection unit;

The controller is configured to:

receiving a voltage monitoring result sent by the voltage intelligent detection unit, and acquiring a communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform;

and controlling the breaker body to execute different opening and closing operation control strategies according to the voltage monitoring result and the communication connection state.

2. The circuit breaker recloser control system of claim 1, wherein the controller is further configured to:

sending a registration request to the digital operation and maintenance monitoring platform;

and receiving a registration result fed back by the digital operation and maintenance monitoring platform, and determining the communication connection state with the digital operation and maintenance monitoring platform according to the registration result.

3. The circuit breaker recloser control system of claim 2, wherein the controller is further configured to:

under the condition that the registration result contains a registration success identifier, determining that the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform is a success state;

and under the condition that the registration result comprises a registration failure identifier, determining that the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform is a failure state.

4. The circuit breaker recloser control system of claim 3, wherein the controller is further configured to:

executing a local opening and closing operation control strategy under the condition that the communication connection state is a failure state;

and executing a remote opening and closing operation control strategy under the condition that the communication connection state is a successful state.

5. The automatic reclosing control system according to claim 4, wherein the integrated protection device further comprises an intermediate relay unit and a time relay unit, and the voltage monitoring result comprises a mains voltage loss result and a mains restoration result;

the controller is further configured to:

controlling the intermediate relay unit and the time relay unit to realize switching-off operation under the condition that the communication connection state is a failure state and the voltage monitoring result is the mains supply voltage loss result;

and under the condition that the communication connection state is a failure state and the voltage monitoring result is the mains supply recovery result, controlling the intermediate relay unit and the time relay unit to realize closing operation.

6. The circuit breaker recloser control system of claim 5, wherein the controller is further configured to:

Uploading the voltage monitoring result under the condition that the communication connection state is a successful state, and controlling the intermediate relay unit and the time relay unit to realize the switching operation in response to a switching operation signal issued by the digital operation and maintenance monitoring platform; and/or the number of the groups of groups,

and responding to a switching-on operation signal issued by the digital operation and maintenance monitoring platform, and controlling the intermediate relay unit and the time relay unit to realize switching-on operation.

7. The circuit breaker recloser control system of claim 1, wherein the digital operation and maintenance monitoring platform is configured to:

receiving a registration request sent by the comprehensive protection device, and generating a registration result according to configuration information contained in the registration request;

and sending the registration result to the comprehensive protection device.

8. The circuit breaker recloser control system of claim 7, wherein the digital operation and maintenance monitoring platform is further configured to:

receiving a voltage monitoring result uploaded by the comprehensive protection device under the condition that the communication connection state is a successful state;

and generating a switching-off operation signal or a switching-on operation signal according to the voltage monitoring result, and sending the switching-off operation signal or the switching-on operation signal to the comprehensive protection device.

9. The automatic reclosing control system according to any one of claims 1-8, wherein the circuit breaker body further comprises a mode switch for switching an operation mode of the circuit breaker body, the operation mode comprising an automatic mode and a manual mode;

the controller is further configured to:

acquiring a working mode executed by the breaker body;

under the condition that the working mode is the automatic mode, controlling the breaker body to execute a local opening and closing operation control strategy and a remote opening and closing operation control strategy according to the voltage monitoring result and the communication connection state;

and under the condition that the working mode is the manual mode, controlling the breaker body to execute a manual opening and closing operation control strategy.

10. A circuit breaker reclosing control method, characterized by being applied to the circuit breaker reclosing control system according to any one of claims 1-9, the method comprising:

the comprehensive protection device controller receives the voltage monitoring result sent by the voltage intelligent detection unit and acquires the communication connection state of the comprehensive protection device and the digital operation and maintenance monitoring platform;

And the comprehensive protection device controller controls the breaker body to execute different opening and closing operation control strategies according to the voltage monitoring result and the communication connection state.